The Stovebolt Site Forums The Shop Area General Truck Talk Cowl Vent

My guess would be that someone put some sealer under it to keep it from leaking cold air in the winter time or leaking water. If you have not painted it yet perhaps it would help to fill the "void" around the vent with some type penetrating oil and see if it would loosen up whatever is under it. I have seen them stick real tight to the gasket put usually they will pop loose with a little effort. I vote someone sealed it up. Worse case senario would be to take the handle and little side bolts out. then take a small block of wood and tap or push up on the vent from underneath. I know its had to get to but it will beat taking a screwdriver and prying up from the outside damaging the metal. Soak it first.